Display panel or screen with a graphical user interface



FIG. 1 is a front view of a display panel or screen with a graphical user interface showing the first embodiment of our novel design;

FIG. 2 is a second embodiment thereof;

FIG. 3 is a third embodiment thereof;

FIG. 4 is a fourth embodiment thereof;

FIG. 5 is a fifth embodiment thereof;

FIG. 6 is a sixth embodiment thereof;

FIG. 7 is a seventh embodiment thereof;

FIG. 8 is an eighth embodiment thereof; and,

FIG. 9 is a ninth embodiment thereof.

The broken line showing of the display panel or screen and portions of the graphical user interface form no part of the claimed design. 

CLAIM The ornamental design for a display panel or screen with a graphical user interface, as shown and described. 